Sectional boiler



March 23, 1943. v. GERICH SECTIONAL BOILER Filed Aug. 20,

1940 3 Sheets-Sheet 1 Q INVENTOR.

Mum/555mm ATTORNEY 9m n 555 W W2: s; AQ mz: .53.

$N .WN N NE QNN MN MN v. GERICH 2,314,581

SECTIONAL BOILER Filed Aug. 20, 1940 3 Sheets-Sheet 3 March 23, 1943.

' INVENTOR.

4 27. oa'MLf/IU/VEFER/C'H 21;? A n A HTTORNEY Patented Mar. 23, 1943UNITED STATES FATENT OFFICE SECTIONAL BOILER Valentine Gerich, New York,N. Y.

Application August 20, 1940, Serial No. 353,323 3 Claims. ((21.122-4225) This invention relates to an improvement in sectional castiron low-pressure steam boilers and hot water heaters.

A salient feature of this invention, is the instant installation of anynumber of intermediate sections that may be secured by stay-rods to thefront header and rear sections, to suit the required horsepower-andspace available, either in the single, duplex or multiple type of steamor hot water boilers.

Another salient feature of this invention, is the design of a tubularshell boiler, having five levels of large and small fire flue passagesarranged in a very compact manner, each level of fire flues beingconnected in the front header and rear sections by means of by-passagesset at about 45 degrees, whereby the heat is concen'trated for greaterheating efficiency in the larger fire flues of the intermediatesections.

Another salient feature of this invention, is the caulking seams thatprovide sealing means between all of the sections, and'the fire-fluepassages. The space between each section is only one-eighth of an inch,into which soot will eventually seal and close up and thus solidifyingthe entire assembled sections, and together with vertical and horizontalcaulking seams in between each of the fire-flue passages, providegreater fire and heating efficiency.

These diagonal by-passages are side feeders from small fire-flues to thecentral vertical formation of larger fire-fines leading from the fireboxor fire-pot to the smoke stack at rear end section, the smallerfire-fiues being staggered in between the circular wall portions of thelarger fire-fiues so as to make more compact the complete fire andheating efi'iciency of the each boiler unit, either single, duplex or inthe multiple type.

Another salient feature of this invention, is the interchangeable andconvertible means provided in the fire-boxes for burning either coal,pulverized coal, fuel oil or gas.

Another salient feature of this invention, is the adaptability ofproviding the interconnecting sections with their fire-flues andby-passages for a duplex or multiple type boiler of greater horsepowerfor factory. and large buildings, or for only a single fire-box boilerof a small horsepower for individual homes and small buildings.

Other features of the invention will appear as the description proceedsin the following specification, accompanied by the annexed drawings, inwhich Figure 1 is a front elevation of the sectional duplex boiler ofthis invention, on about a scale of 2;" to the foot, thus providing aduplex boiler 5 feet wide by 6 feet 6 inches high.

Figure 2 is a side elevation of the same secs tional boiler.

Figure 3 is a face view of the front header section showing thefire-fiues in their zig-zag connections on line 3-3 of Figures 2 and 7.

Figure 4 is a cross-sectional of one of the intermediate sections, withthe water omitted, taken on line 4-4 of Figure 5.

Figure 5 is a sectional View on line 5-5 of Figure 4 with the water,caulking liners and radius stay-rods omitted.

Figure 6 is an enlarged detail sectional view of one of theinterconnecting sleeves in between each individual section.

Figure 7 is an enlarged longitudinal section following each zig-gazfire-flue on each of the five levels, taken on the zig-zag line 1-1 ofFigure 3.

Figure 8 is a fragmentary view of the front fire-box showing the use ofan oil burner in place of coal.

Figure 9 is a front elevational view of the small single fire-boxboiler. Figure 10 shows a detail of a double threaded bolt which may beoptionally placed at fiat open surfaces during the moulding and castingof each section which when cooled secures bolt in a fixed positiontherein.

Figure 11 is a much preferred modified form of coupling each sectiontogether in place of the sleeve tubes II and l2. 7

Referring to the drawings, the numerals l and 2 indicates the frontheader sections and 3 and 4 the rear header or end sections of theboiler, having intermediate sections 5, 6, 1, 8, 9 and Hiinterconnecting therebetween by means of water and steam circulatingsleeve members H and [2, respectively, which are firmly wedged into andsecured into openings of each of the connected sections by means ofthreaded ends of radius stay-rods l3 and locking nuts 14, which alsofirmly secure the asbestor-like liners [5 into their round ca-lkingseams l6 and ll, shown clearly in the enlargedsectional view of Figure7.

All of the sections I to 10 are closely positioned so the space inbetween the sections at the cauiking seams i6 and H is filled up withsoot, adjacent the asbestor-like liners l5 thereby providing smooth-likefiues in the large fire-'- boxes 20 .and 21, the larger fire-fines 2|,22, 2B and 29 and the smaller Icy-passages and fireinFigure 3.surrounding each fire-flue is shown clearly in fiues 23, 24, 25, 26, 39,3|, 32 and 33, all of which lead to the rear stack flue 34.

The fire boxes 20 and 21 are tubular in shape and are provided withgrates G for coal burning, the grates being operated by a rod R andlever L, all of which is well known. The fire boxes are provided with anupper and lower doors 35 and 36, semi-circular in shape, as shownclearly in Figure 1, and have latches 31, hinges 38, bolts 39, sightholes 40, draft control 42, and a grater shaker GS on the fixed portion43 having the latch locking arrangement 44.

Large and small doors 50 and are provided for each of the larger andsmaller fireflues, these doors having similar parts as those describedon doors 35 and 36 and are primed accordingly. Water gauge 54, blow-01fcocks 55, clean out plugs 56, brass wash out and clean out plugs 58 and59 for the water space and the steam sleeves II and I2, all of which areprovided similar to all boilers.

The front section I has door openings in direct alignment with each ofthe fire-fines, aid the rear section 3 has the stack opening 66 and rearclean out opening BI and door 62 to clean out the combusting chamber CC20 and 21. The adjacent interconnectable sections I, 2, 3 and 4 areprovided with the connecting by-passages as indicated by the arrows A inFigure 7, and

the shaded passages P in Figure 3.

It is to be noted that the longitudinal walled .water spaces of eachsection in between each of the fire-flues, as shown in Figure 7, is forthe purpose of illustrating the continuous fire-heat wave passages astaken on the zig-zag line 1-1 The exact water space, however,

Figures 3, 4 and 5. The fire-flues have been arranged so that a moreefficient boiler per horsepower for a low pressure is provided in theleast head room space permissible for the installation of either thelarger duplex or smaller singular type of sectional boilers.

The fire-box of each tubular passage 20 and 21, either in the single orduplex form, is provided with a rear fire wall 82, thus providing theseparation of the combustion chamber CC from the ash pit of the frontfire-box when used for coal.

It may be retained for the oil and gas blowers and pulverize coalburners, if so desired.

Each section is provided with positioning lugs or projections adaptedfor the installation work onto the floor base B comprising a rigid frameof cross and longitudinal members 14 and I5. The members I5 have arecessed portion 16 through which a suitable bar may be insertedunderneath each section in order to pry same into proper position foreach section to be drawn securely together with the interconnectingwater and steam sleeve-tubes II and I2 by the radius stay-rods I3 andnuts I4. After the asbestos-like liners I5 are inserted in the caulkingseams I6 and I'l,-the liners I5 are inserted on each side of "thevertical seam I'I. At the rear section a conis inserted for burning oilinto the fire-box. Thi

applies also to installing pulverized coal burners, but for a gas burnerthe grates G remain in the normal position as shown in Figure 7 forbuming coal.

Boilers of more or less capacity, will vary in size, and therefore, thefront and rear end sections with the intermediate sections will havecorresponding smaller or larger fire-flues and interconnecting sleevesaccordingly.

In Figure 9 a singular type of a sectional boiler is shown, where onlyone fire-box and fire-fines are provided. This singular type is similarto the duplex type boiler hereinbefore described, and similar parts willbe primed accordingly. This 7 singular type boiler is adaptable for asmall size plant for hot water and steam heating, in which thethermostat I00 or the steam gauge IIiI is provided, respectively.

In Figure 11, a much preferred modification of the sections I to I0,inclusive, is shown whereby the interlocking sleeve members II and I2are eliminated, and in place thereof, female and male connections areprovided integrally in the face portions of the casting of each section,such as for example, by bosses I65 that fits into the countersunkopenings I66 when the sections are drawn together by the radiusstay-rods I3 and lock nuts I4.

Headers IIO are for the steam chambers SC, in which the water line isabout 4 inches above the uppermost fire-flues 22 and 29.

For circulating hot-water, there is no water line, and the headers forthe hot-water supply line may be suitably placed as usually done.

Doors 36 and 35 are for the stoking of coal and ash removal,respectively, and a clean-out door H5 and draft-check II6 are providedat the rear section on the underside of the smoke stack III, as noted inFigure 2.

It is to be understood that any part of this invention as hereinbeforedescribed and shown in the drawings, may be altered to improve theefiiciency of the boilers, providing same comes within the spirit ofthis invention and the appended claims.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is as follows:

1. In a sectional steam boiler or hot-water heater of the characterdescribed, the combinatoin of front and rear sections havinginterconnecting sections therebetween, each of said sections providedwith water and steam sleeve-tube members providing circulating meansbetween each of said sections, said sections being provided withopenings forming double fire-boxes and combustion chambers andlongitudinally small size and large size fire flues spaced verticallyabove the fire-boxes and combustion chambers, and by-passages connectingsome of the small size fire-fiues with the fire-boxes and combustionchambers and other by-passages connecting the small size fire-fiues withthe large size fire-flues all of which form a passage leading to thesmoke stack in the rear section, the lower part of the rear sectionbeing provided with a clean-out hole and door that permits access to thepassage, the front header section being provided with cleanout openingsand doors for each of said fire-flues, each of said fire-boxes beingprovided with a pair of semi-circular doors in the front header section,one of which is for a fuel feeder and the other of which is for an ashpit, the sections being provided with caulking seams, asbestoslikeliners inserted in between said seams, suitably spaced radius stay-rodsextending through the sections, said sections and interconnectingsleeve-tube members being adaptable to be drawn together by said radiusstay-rods, whereby all of said fire-boxes, fire-fines and theirby-passages are rigidly secured in alignment with each other and saidasbestos-like liners secured in between said caulking seams, thussealing each of said fire-fiues.

In a sectional steam boiler or hot-water heater of the characterdescribed, the combination of front and rear sections havinginterconnecting sections therebetween, each of said sections providedwith water and steam connections providing circulating means betweeneach of said sections, said sections being provided with tubularopenings forming double fire-boxes and combustion chambers andlongitudinally extending small size and large size fire-flues spacedvertically above the fire-boxes and combustion chambers, and by-passagesconnecting some of the small size fire-flues with the fire-boxes andcombustion chambers and other by-passages connecting the small sizefire-flues with the large size fire-flues all of which form a passageleading to the smoke stack in the rear section, the lower part of therear section being provided with a clean-out hole and door that permitsaccess to the passage, the front header section being provided withclean-out openings and doors for each of said fire-flues, each of saidfire-boxes being provided with a pair of doors in the front headersection, one of which is for a fuel feeder and the other of which is foraccess to the ash pit, all of said sections being provided with caulkingseams, asbestos-like liners inserted in between said seams, suitablyspaced radius stay-rods extending through all of said sections, saidsections and water and steam connections being adaptable to be drawntogether by said radius stay-rods, whereby all of said fire-boxes,fire-fines and their by-passages are rigidly secured in alignment witheach other and said asbestos-like liners secured in between saidcaulking seams thus sealing each of said fire-flues.

3. In a sectional steam boiler or hot-water heater of the characterdescribed, the combination of front and rear sections havinginterconnecting sections therebetween, each of said sections rovidedwith water and steam connections providing circulating means betweeneach of said sections, said interconnecting sections being provided withtubular openings forming a fire-box and combustion chamber andlongitudinally extending small size and large size fire-fines spacedvertically above the fire-box and combustion chamber, and by-passagesconnecting some of the small size fire-flues with the fire-boxes andcombustion chambers and other by-passages connecting some of the smallsize fire-fines with the large size fire-fines all of which form apassage leading to the smoke stack in the rear section, the lower partof the rear section being provided with a clean-out hole and door thatpermits access to the passage, the front header section being providedwith clean-out openings and doors for each of said fire-fines, saidfire-box being provided with a pair of doors in the front headersection, one of which is for feeding the fuel therein and the other forthe removal of the ashes from the pit therein, all of said sectionsbeing provided with caulking seams, asbestos-like liners inserted inbetween said seams, suitably spaced radius stay-rods extending throughsaid sections, said sections and connections for water and steamcirculating means being adaptable to be drawn together by said radiusstay-rods, whereby all of said openings forming the fire-box, combuszionchamber, fire-flues and their by-passages are rigidly secured inalignment with each other and said asbestos-like liners secured inbetween said caulking seams thus sealing each of said fire-fines.

VALENTINE GERICH.

